./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_1.BV.c.cil-2a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_1.BV.c.cil-2a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8f0681106713dda8f6af7535e98def966db59035 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:42:50,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:42:50,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:42:50,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:42:50,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:42:50,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:42:50,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:42:50,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:42:50,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:42:50,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:42:50,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:42:50,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:42:50,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:42:50,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:42:50,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:42:50,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:42:50,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:42:50,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:42:50,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:42:50,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:42:50,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:42:50,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:42:50,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:42:50,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:42:50,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:42:50,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:42:50,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:42:50,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:42:50,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:42:50,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:42:50,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:42:50,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:42:50,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:42:50,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:42:50,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:42:50,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:42:50,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:42:50,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:42:50,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:42:50,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:42:50,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:42:50,957 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2019-11-26 02:42:50,982 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:42:50,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:42:50,992 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:42:50,993 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:42:50,993 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:42:50,993 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:42:50,993 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:42:50,994 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:42:50,994 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:42:50,994 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:42:50,994 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:42:50,994 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:42:50,995 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:42:50,995 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:42:50,995 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:42:50,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:42:50,996 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:42:50,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:42:50,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:42:50,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:42:50,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:42:50,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:42:50,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:42:50,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:42:50,998 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:42:50,999 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:42:50,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:42:50,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:42:50,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:42:50,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:42:51,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:42:51,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:42:51,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:42:51,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:42:51,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:42:51,001 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:42:51,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:42:51,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:42:51,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:42:51,002 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f0681106713dda8f6af7535e98def966db59035 [2019-11-26 02:42:51,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:42:51,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:42:51,191 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:42:51,192 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:42:51,193 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:42:51,193 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan/../../sv-benchmarks/c/bitvector/s3_clnt_1.BV.c.cil-2a.c [2019-11-26 02:42:51,245 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan/data/27522f561/447b02ebd8284a168ee8c08606216937/FLAG875a4ee46 [2019-11-26 02:42:51,649 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:42:51,650 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/sv-benchmarks/c/bitvector/s3_clnt_1.BV.c.cil-2a.c [2019-11-26 02:42:51,662 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan/data/27522f561/447b02ebd8284a168ee8c08606216937/FLAG875a4ee46 [2019-11-26 02:42:52,055 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan/data/27522f561/447b02ebd8284a168ee8c08606216937 [2019-11-26 02:42:52,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:42:52,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:42:52,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:42:52,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:42:52,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:42:52,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:42:52" (1/1) ... [2019-11-26 02:42:52,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb30547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:52, skipping insertion in model container [2019-11-26 02:42:52,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:42:52" (1/1) ... [2019-11-26 02:42:52,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:42:52,131 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:42:52,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:42:52,477 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:42:52,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:42:52,566 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:42:52,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:52 WrapperNode [2019-11-26 02:42:52,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:42:52,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:42:52,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:42:52,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:42:52,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:52" (1/1) ... [2019-11-26 02:42:52,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:52" (1/1) ... [2019-11-26 02:42:52,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:42:52,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:42:52,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:42:52,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:42:52,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:52" (1/1) ... [2019-11-26 02:42:52,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:52" (1/1) ... [2019-11-26 02:42:52,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:52" (1/1) ... [2019-11-26 02:42:52,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:52" (1/1) ... [2019-11-26 02:42:52,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:52" (1/1) ... [2019-11-26 02:42:52,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:52" (1/1) ... [2019-11-26 02:42:52,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:52" (1/1) ... [2019-11-26 02:42:52,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:42:52,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:42:52,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:42:52,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:42:52,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_abe83ee4-fb0c-418a-ba38-0877edee14c2/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:42:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:42:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:42:52,846 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-26 02:42:53,398 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2019-11-26 02:42:53,398 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2019-11-26 02:42:53,675 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:42:53,675 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-26 02:42:53,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:53 BoogieIcfgContainer [2019-11-26 02:42:53,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:42:53,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:42:53,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:42:53,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:42:53,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:42:52" (1/3) ... [2019-11-26 02:42:53,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603b7888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:42:53, skipping insertion in model container [2019-11-26 02:42:53,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:52" (2/3) ... [2019-11-26 02:42:53,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603b7888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:42:53, skipping insertion in model container [2019-11-26 02:42:53,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:53" (3/3) ... [2019-11-26 02:42:53,686 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.BV.c.cil-2a.c [2019-11-26 02:42:53,695 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:42:53,702 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2019-11-26 02:42:53,712 INFO L249 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2019-11-26 02:42:53,744 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:42:53,745 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:42:53,745 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:42:53,745 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:42:53,745 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:42:53,745 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:42:53,746 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:42:53,746 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:42:53,775 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2019-11-26 02:42:53,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:42:53,781 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:53,781 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:53,782 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:42:53,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:53,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1881388038, now seen corresponding path program 1 times [2019-11-26 02:42:53,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:53,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222386287] [2019-11-26 02:42:53,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:53,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:53,995 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222386287] [2019-11-26 02:42:53,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:53,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:42:53,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935186403] [2019-11-26 02:42:54,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:42:54,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:54,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:42:54,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:54,018 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 3 states. [2019-11-26 02:42:54,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:54,211 INFO L93 Difference]: Finished difference Result 255 states and 389 transitions. [2019-11-26 02:42:54,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:42:54,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-26 02:42:54,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:54,225 INFO L225 Difference]: With dead ends: 255 [2019-11-26 02:42:54,225 INFO L226 Difference]: Without dead ends: 126 [2019-11-26 02:42:54,229 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:54,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-11-26 02:42:54,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-11-26 02:42:54,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-26 02:42:54,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 167 transitions. [2019-11-26 02:42:54,271 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 167 transitions. Word has length 13 [2019-11-26 02:42:54,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:54,271 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 167 transitions. [2019-11-26 02:42:54,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:42:54,272 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 167 transitions. [2019-11-26 02:42:54,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-26 02:42:54,273 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:54,273 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:54,274 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:42:54,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:54,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1731795699, now seen corresponding path program 1 times [2019-11-26 02:42:54,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:54,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054197922] [2019-11-26 02:42:54,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:54,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:54,340 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054197922] [2019-11-26 02:42:54,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:54,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:42:54,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677964998] [2019-11-26 02:42:54,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:42:54,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:54,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:42:54,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:54,343 INFO L87 Difference]: Start difference. First operand 126 states and 167 transitions. Second operand 3 states. [2019-11-26 02:42:54,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:54,505 INFO L93 Difference]: Finished difference Result 264 states and 355 transitions. [2019-11-26 02:42:54,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:42:54,506 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-26 02:42:54,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:54,507 INFO L225 Difference]: With dead ends: 264 [2019-11-26 02:42:54,508 INFO L226 Difference]: Without dead ends: 141 [2019-11-26 02:42:54,509 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:54,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-11-26 02:42:54,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2019-11-26 02:42:54,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-11-26 02:42:54,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 183 transitions. [2019-11-26 02:42:54,531 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 183 transitions. Word has length 23 [2019-11-26 02:42:54,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:54,531 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 183 transitions. [2019-11-26 02:42:54,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:42:54,532 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 183 transitions. [2019-11-26 02:42:54,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:42:54,535 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:54,535 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:54,536 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:42:54,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:54,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1052308657, now seen corresponding path program 1 times [2019-11-26 02:42:54,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:54,538 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849429890] [2019-11-26 02:42:54,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:42:54,633 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849429890] [2019-11-26 02:42:54,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:54,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:42:54,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976499797] [2019-11-26 02:42:54,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:42:54,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:54,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:42:54,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:54,634 INFO L87 Difference]: Start difference. First operand 139 states and 183 transitions. Second operand 3 states. [2019-11-26 02:42:54,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:54,803 INFO L93 Difference]: Finished difference Result 292 states and 391 transitions. [2019-11-26 02:42:54,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:42:54,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-11-26 02:42:54,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:54,806 INFO L225 Difference]: With dead ends: 292 [2019-11-26 02:42:54,806 INFO L226 Difference]: Without dead ends: 156 [2019-11-26 02:42:54,807 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:54,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-11-26 02:42:54,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2019-11-26 02:42:54,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-26 02:42:54,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2019-11-26 02:42:54,828 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 34 [2019-11-26 02:42:54,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:54,829 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2019-11-26 02:42:54,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:42:54,829 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2019-11-26 02:42:54,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-26 02:42:54,832 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:54,833 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:54,833 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:42:54,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:54,834 INFO L82 PathProgramCache]: Analyzing trace with hash 288832683, now seen corresponding path program 1 times [2019-11-26 02:42:54,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:54,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280906827] [2019-11-26 02:42:54,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:54,942 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-26 02:42:54,943 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280906827] [2019-11-26 02:42:54,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:54,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-26 02:42:54,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833708362] [2019-11-26 02:42:54,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:42:54,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:54,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:42:54,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:54,947 INFO L87 Difference]: Start difference. First operand 154 states and 201 transitions. Second operand 3 states. [2019-11-26 02:42:54,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:54,960 INFO L93 Difference]: Finished difference Result 154 states and 201 transitions. [2019-11-26 02:42:54,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:42:54,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-11-26 02:42:54,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:54,963 INFO L225 Difference]: With dead ends: 154 [2019-11-26 02:42:54,963 INFO L226 Difference]: Without dead ends: 153 [2019-11-26 02:42:54,964 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:54,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-26 02:42:54,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-11-26 02:42:54,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-26 02:42:54,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 200 transitions. [2019-11-26 02:42:54,981 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 200 transitions. Word has length 47 [2019-11-26 02:42:54,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:54,982 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 200 transitions. [2019-11-26 02:42:54,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:42:54,982 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 200 transitions. [2019-11-26 02:42:54,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-26 02:42:54,985 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:54,986 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:54,986 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:42:54,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:54,987 INFO L82 PathProgramCache]: Analyzing trace with hash 363878898, now seen corresponding path program 1 times [2019-11-26 02:42:54,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:54,988 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112415596] [2019-11-26 02:42:54,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:42:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:42:55,102 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:42:55,103 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:42:55,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:42:55 BoogieIcfgContainer [2019-11-26 02:42:55,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:42:55,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:42:55,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:42:55,145 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:42:55,146 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:53" (3/4) ... [2019-11-26 02:42:55,149 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 02:42:55,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:42:55,151 INFO L168 Benchmark]: Toolchain (without parser) took 3091.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 948.8 MB in the beginning and 924.3 MB in the end (delta: 24.5 MB). Peak memory consumption was 173.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:55,151 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:42:55,152 INFO L168 Benchmark]: CACSL2BoogieTranslator took 507.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:55,153 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:55,153 INFO L168 Benchmark]: Boogie Preprocessor took 54.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:42:55,154 INFO L168 Benchmark]: RCFGBuilder took 994.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.5 MB). Peak memory consumption was 87.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:55,154 INFO L168 Benchmark]: TraceAbstraction took 1466.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 924.3 MB in the end (delta: 120.6 MB). Peak memory consumption was 120.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:55,155 INFO L168 Benchmark]: Witness Printer took 4.34 ms. Allocated memory is still 1.2 GB. Free memory is still 924.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:42:55,158 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 507.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 994.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.5 MB). Peak memory consumption was 87.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1466.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 924.3 MB in the end (delta: 120.6 MB). Peak memory consumption was 120.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.34 ms. Allocated memory is still 1.2 GB. Free memory is still 924.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 307]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 219. Possible FailurePath: [L628] int __retres1 ; [L9] int s__info_callback = __VERIFIER_nondet_int(); [L10] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L11] int s__state ; [L12] int s__new_session ; [L13] int s__server ; [L14] int s__version = __VERIFIER_nondet_int(); [L15] int s__type ; [L16] int s__init_num ; [L17] int s__bbio = __VERIFIER_nondet_int(); [L18] int s__wbio = __VERIFIER_nondet_int(); [L19] int s__hit = __VERIFIER_nondet_int(); [L20] int s__rwstate ; [L21] int s__init_buf___0 ; [L22] int s__debug = __VERIFIER_nondet_int(); [L23] int s__shutdown ; [L24] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L25] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L26] unsigned int s__ctx__stats__sess_connect ; [L27] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int(); [L28] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int(); [L29] int s__s3__change_cipher_spec ; [L30] int s__s3__flags ; [L31] int s__s3__delay_buf_pop_ret ; [L32] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__next_state___0 ; [L38] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L39] int s__session__cipher ; [L40] int s__session__compress_meth ; [L41] int buf ; [L42] unsigned long tmp ; [L43] unsigned long l ; [L44] int num1 ; [L45] int cb ; [L46] int ret ; [L47] int new_state ; [L48] int state ; [L49] int skip ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L53] int tmp___3 ; [L54] int tmp___4 ; [L55] int tmp___5 ; [L56] int tmp___6 = __VERIFIER_nondet_int(); [L57] int tmp___7 = __VERIFIER_nondet_int(); [L58] int tmp___8 = __VERIFIER_nondet_int(); [L59] int tmp___9 = __VERIFIER_nondet_int(); [L60] int blastFlag ; [L61] int ag_X ; [L62] int ag_Y ; [L63] int ag_Z = __VERIFIER_nondet_int(); [L64] unsigned int ag_V ; [L65] unsigned int ag_W ; [L66] int __retres62 ; [L69] ag_V = 2U [L70] ag_W = 5U [L71] s__state = 12292 [L72] blastFlag = 0 [L73] tmp = __VERIFIER_nondet_int() [L74] cb = 0 [L75] ret = -1 [L76] skip = 0 [L77] tmp___0 = 0 [L78] COND FALSE !(s__info_callback != 0) [L81] COND FALSE !(s__ctx__info_callback != 0) [L87] s__in_handshake = s__in_handshake + 1 [L88] tmp___1 = __VERIFIER_nondet_int() [L89] COND TRUE tmp___1 & 12288 [L90] tmp___2 = __VERIFIER_nondet_int() [L91] COND FALSE !(tmp___2 & 16384) [L100] COND TRUE 1 [L102] state = s__state [L103] COND TRUE s__state == 12292 [L206] s__new_session = 1 [L207] s__state = 4096 [L208] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L213] s__server = 0 [L214] COND FALSE !(cb != 0) [L219] COND FALSE !((s__version & 65280) != 768) [L225] s__type = 4096 [L226] COND FALSE !(s__init_buf___0 == 0) [L245] tmp___4 = __VERIFIER_nondet_int() [L246] COND FALSE !(! tmp___4) [L252] tmp___5 = __VERIFIER_nondet_int() [L253] COND FALSE !(! tmp___5) [L259] s__state = 4368 [L260] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L261] s__init_num = 0 [L577] COND FALSE !(! s__s3__tmp__reuse_message) [L606] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 4096) [L112] COND FALSE !(s__state == 20480) [L115] COND FALSE !(s__state == 4099) [L118] COND TRUE s__state == 4368 [L265] s__shutdown = 0 [L266] ret = __VERIFIER_nondet_int() [L267] COND TRUE blastFlag == 0 [L268] blastFlag = 1 [L272] COND FALSE !(ret <= 0) [L277] s__state = 4384 [L278] s__init_num = 0 [L279] COND FALSE !(s__bbio != s__wbio) [L577] COND FALSE !(! s__s3__tmp__reuse_message) [L606] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 4096) [L112] COND FALSE !(s__state == 20480) [L115] COND FALSE !(s__state == 4099) [L118] COND FALSE !(s__state == 4368) [L121] COND FALSE !(s__state == 4369) [L124] COND TRUE s__state == 4384 [L287] ret = __VERIFIER_nondet_int() [L288] COND TRUE blastFlag == 1 [L289] blastFlag = 2 [L293] COND FALSE !(ret <= 0) [L298] COND FALSE !(\read(s__hit)) [L301] s__state = 4400 [L303] s__init_num = 0 [L577] COND FALSE !(! s__s3__tmp__reuse_message) [L606] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 4096) [L112] COND FALSE !(s__state == 20480) [L115] COND FALSE !(s__state == 4099) [L118] COND FALSE !(s__state == 4368) [L121] COND FALSE !(s__state == 4369) [L124] COND FALSE !(s__state == 4384) [L127] COND FALSE !(s__state == 4385) [L130] COND TRUE s__state == 4400 [L307] s__s3__tmp__new_cipher__algorithms - 256 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 127 locations, 18 error locations. Result: UNSAFE, OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 675 SDtfs, 153 SDslu, 268 SDs, 0 SdLazy, 274 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 9235 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 50/50 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...